<!-- 富文本 -->
<template>
  <div class="m-wangEditor">
    <Toolbar style="border-bottom: 1px solid #ccc" :editor="editorRef" :defaultConfig="toolbarConfig" :mode="mode" />
    <Editor class="editor-content'" style="height: 300px; overflow-y: hidden;" v-model="valueHtml"
      :defaultConfig="editorConfig" :mode="mode" @onCreated="handleCreated" />
  </div>
</template>
<script lang="ts" setup>
import '@wangeditor/editor/dist/css/style.css'; // 引入 css

import {
  computed,
  onBeforeUnmount,
  ref,
  shallowRef
} from 'vue';

// 引入 wangEditor
import {
  Editor,
  Toolbar
} from '@wangeditor/editor-for-vue';

let editors = null
// 编辑器实例，必须用 shallowRef
const editorRef = shallowRef()
const toolbarConfig = {}
const editorConfig = { placeholder: '请输入内容...' }

// 内容 HTML
const mode = ref('default')
let emit = defineEmits(['update:modelValue'])
let props = defineProps({
  modelValue: String,
})

const getEditorData = () => {
  // 通过代码获取编辑器内容
  let data = editors.txt.html()
  alert(data)
}

const handleCreated = (editor) => {
  editorRef.value = editor // 记录 editor 实例，重要！
}

const valueHtml = computed({
  get() {
    return props.modelValue
  },
  set(val) {
    // 防止富文本内容为空时，校验失败
    if (editorRef.value.isEmpty()) val = "";
    emit('update:modelValue', val)
  }
})

// 组件销毁时，也及时销毁编辑器
onBeforeUnmount(() => {
  // 调用销毁 API 对当前编辑器实例进行销毁
  const editor = editorRef.value
  if (editor == null) {
    return
  }
  editor.destroy()
})
</script>
<style lang="scss" scoped>
.m-wangEditor {
  z-index: 99;
  width: 100%;
  border: 1px solid #cccccc;

  .editor-toolbar {
    border-bottom: 1px solid #cccccc;
  }

  .editor-content {
    overflow-y: hidden;
  }
}
</style>
